20042436525 has 48 divisors (see below), whose sum is σ = 34372341696. Its totient is φ = 10297566720.

The previous prime is 20042436511. The next prime is 20042436527. The reversal of 20042436525 is 52563424002.

It is a happy number.

It is not a de Polignac number, because 20042436525 - 2⁷ = 20042436397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042436527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192859 + ... + 277991.

It is an arithmetic number, because the mean of its divisors is an integer number (716090452).

Almost surely, 2^20042436525 is an apocalyptic number.

20042436525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20042436525 is a deficient number, since it is larger than the sum of its proper divisors (14329905171).

20042436525 is a wasteful number, since it uses less digits than its factorization.

20042436525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85262 (or 85257 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 20042436525 in words is "twenty billion, forty-two million, four hundred thirty-six thousand, five hundred twenty-five".